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Well lets see the question is 80+20/4x8 so first you have to do 20/4 which is 5.
Now it is 80+5x8. Now you have to do 5x8 since multiplication goes first 5x8 is 40
Now it is 80+40=120

The order is
Parenthesis ( )
Exponents 2^2 (Would look like 2 and a smaller 2 over it on a calculator)
Multiplication and Division (It goes from left to right like in your problem)
Addition and Subtraction (It goes from left to right like the multiplication and division)

A way to remember it is 'Please Excuse my Dear Aunt Sally' that's how i remembered it well i hoped this helped. It is the order of operations.

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15y ago

What else can I help you with?